This time the manoeuvre was successfully accomplished. Then followed an intricate bit of the river through and beyond Wargrave, where the stream is obstructed by numerous "aits", or islands.

Mile after mile was reeled off in grand style. By this time the locks were no longer novelties to the Sea Scouts—they became monotonous. Marlow, with its huge weir, interested them, but they voted the river between Bourne End and Maidenhead the best from a picturesque point of view.

As they approached Boulter's Lock it began to rain in torrents, so oilskins and sou'westers were donned. The downpour proved a blessing in disguise, because the Olivette was spared the intricate business of entering a lock crowded with frail pleasure-boats. As it happened, the most famous lock on the Thames was almost deserted.

Windsor Castle, viewed in the sunlight as the clouds temporarily cleared, enthralled the Sea Scouts. They realized that in that noble pile was embodied the history of nearly a thousand years.

"I wish we had time to go over the Castle," remarked Roche wistfully.

"So do I," agreed Mr. Armitage. "But this is a business proposition, Roche; we've contracted to undertake two tasks in a given time, and it's up to us to carry them out."

Magna Carta Island, looking much like the rest of the Thames islands, was passed soon afterwards—a flat, uninteresting strip of ground famous for the fact that the greatest deed that gave the English people their liberty was enacted here, when the barons forced King John to sign the all-important charter.

The afternoon found the Olivette off Hampton Court. Her voyage was approaching the end. There were evidences that she was nearing the great Metropolis.

"We'll do it easily this time," said Mr. Armitage, addressing the owner.

"Yes," replied Mr. Murgatroyd dubiously. "I can't say that I'm at all pleased with the river. From a scenic point of view it's all right; but what's the use of a big boat like this? I can't run her at any speed."